Computational results of the ecotoxic analysis of fly and bottom ash from oil shale power plants and shale oil production facilitiesLees, Heidi; Järvik, Oliver; Konist, Alar; Siirde, Andres; Maaten, BirgitChemical engineering transactions2020 / p. 967-972 https://doi.org/0.3303/CET2081162 https://www.scopus.com/record/display.uri?eid=2-s2.0-85092033034&origin=inward&txGid=0c1c7fc07fcc8f2767255413a47fc58b Journal metrics at Scopus Article at Scopus Surface characterisation of Estonian oil shale semi-cokePikkor, Heliis; Lees, Heidi; Maaten, Birgit; Järvik, Oliver; Konist, AlarChemical engineering transactions2020 / p. 853-858 : ill https://doi.org/0.3303/CET2081143 Journal metrics at Scopus Article at Scopus